/Engine/Source/Runtime/HeadMountedDisplay/Public/IHeadMountedDisplay.h
When implemented, creates a new post process node to provide platform-specific HMD distortion.
virtual void CreateHMDPostProcessPass_RenderThread ( [FRDGBuilder](API\Runtime\RenderCore\FRDGBuilder) & GraphBuilder, const [FSceneView](API\Runtime\Engine\FSceneView) & View, const struct [FHMDDistortionInputs](API\Runtime\Renderer\PostProcess\FHMDDistortionInputs) & Inputs, struct [FScreenPassTexture](API\Runtime\Renderer\FScreenPassTexture) & OutPass ) const